Gas-fixture.



,837. PATBNTED AUG.11, 1903.'

R. L. SMITH L J. WARHURST, JR.

GAS FIXTURE.

APPLIoATIoN FILED MAR. 2o. 190s.

N0 MODEL.

THE Nonms Evans oo. manu'mo.. wnsnmarou. u. c.

UNITED STATES Patelted August 11, 1903.

lPATENT OFFICE.

GAS-FIXTURE.

SPECIFICATION forming part of Letters Patent N o. 735,837, dated August 11, 1903.

Application filed March 20, 1903.

To all whom it may concern:

Beit known that we, ROBERT L. SMITH and JAMES WARHURST, J r., citizens of the United States of America, residing at Berwyn, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Gas-Fixtures, of which the following is a specification.

Ourvinvention relates to certain new 'and useful improvements in gas-fixtures; and its object is to produce a device of this class which shall have certain advantages of construction and operation, which will appear` fully and at large in the course of this specification.

To this end our invention consists in certain novel features of construction, which are clearly illustrated in the accompanying drawings and described in this specification. Y

In the aforesaid drawings, Figure 1 is a front elevation of our improved device. Fig. 2 is al side elevation showing the parts in a different position. Fig. 3 is a section in the line 3 3 of Fig. 2 looking in the direction of the arrow. Fig. 4 is a section in the line 4 4 of Fig. 2, and Fig. 5 is a section in the line 5 5 of Fig. 1, looking downward.

Referring now to the drawings, A is the end of the gas-pipe to which the fixture is secured. To said pipe A is secured a iitting B, provided with two outlets b and b. The outlet b is controlled by a stop-cock h2, having at its outer end an arm b3, to which are secured chains b4, so that the stop-cock may be turned from below. The opening b is directly opposite the pipe A and connected therewith by a by-pass b5, which Ypasses around the stopcock b2 and that portion of the fitting in which it is seated.v To thesaid opening b of the tting B is screwed a straight vertical pipe C, having at its lower end a T-'coupling C and burners C2, each controlled by a suitable stop-cock, It is obvious, of course, that any other structure may be substituted for this plain T structure, this form being shown merely for the purpose of illustration.

In the opening b' of the tting B is pivoted a pipe or tube D, having an ordinary gas connection with said opening after the manner of any pivoted or jointed gas-pipe, and to the opposite end of this pipe D is pivoted a series of pipes jointed together at their ends semmai-1.2mm. (no man and indicated in thedrawings by D D2` D3 D4, respectively. To the pivot of the pipe D upon the tting B is also pivoted a plate or rod of metal E, tothe opposite end ot' which is pivoted a series of bars or plates E E2`E3 E4, said bars E E2 E3 crossing the pipes D' D2 D3 at the centers of the rods and pipes and being pivoted to said pipes, respectively, so as to form with said pipes an ordinary lazytongs construction. To the lower end of the lazy-tongs structure and connected with the joint e upon the end of the pipe D4 is a pipe F. Said pipe F extends a slight'distance above the lower end of the lazy-tongs in the form of a nipple fand it is there provided with a collar f, running on the pipe C. The pipe C is likewise provided near its lower end with a similar collar f', running on the pipe F. vTo the lower end of the pipe F is secured a T- czoupling or other iitting F', having burners F The opera-tion of this much of the device will now be apparent. When gas is admitted tothe pipe A, it passes through the tting B into the tube Chaud to the burner C2, where it can be burned. When it is desired to light the burners F2, one of the chains b4 is pulled, so as to turn the stop-cock b2 and admit gas through the opening b to the lazytongs structure, throughmwhich it will pass to the pipe F and thence to the burnermF. The pipe F is obviously vertically movable, so that the entire lower fixture can be vertically moved at will. This type of iixture is particularly desirable for libraries and the like, where it can be placedover a table, the upper set of burners being kept lighted to light the room and the lower set being drawn down when it is desired to light the table, but being pushed up out of the way at will.

In order to secure the movable pipe F and the fixtures attached thereto in any desired vertical position, a lever G, having a circular,

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lever normally in the position shown in Fig. 1, wherein the sharp edges of. the hole in the lever are wedged upon the opposite sides of the pipe and so prevent downward movement of the lower fixtures. When it is desired to lower the pipe F and fixtures attached thereto, lthe knob g' is pushed up, releasing the lever from this wedged position upon the pipe and permitting free vertical movement. Releasing the knob will lock the parts in a perfectly obvious manner.

We realize that considerable variations are possible .in the details of this construction without departing from the spirit of the invention, and We therefore do not intend to limit ourselves to the specific form herein shown and described, except as pointed out in the claims.

We claim as new and desire to secure by Letters Patent- A 1. The combination, in a device of the class described, and with a supply-pipe extended to form a guide, of a stop-cock in the supplypipe having a by-pass connecting the portions of said supply-pipe on opposite sides of the cock, a series of jointed tubular arms connected with the eduction side of the stopcock and guided longitudinally of the supplypipe, a second pipe parallel with the supplypipe forming a continuation of said tubular arms guided upon the' supply-pipe to mov substantially parallel therewith and burners arranged at the ends of the extended supplypipe and the second pipe, respectively.

2. In a device of the class described, the combination with a supply-pipe extended to form a guide, of a series of jointed tubular arms connected with and opening into the supply-pipe and guided longitudinally of the supply-pipe, a second pipe parallel to and beside thesupply-pipe, forming a continuation of the tubular arms, guided to move substantially parallel therewith, and burners on the ends of said two pipes, substantially as described.

In witness Whereo` We have signed the above application for Letters Patent, at Chicago, in the county of Cook and State of Illinois, this 17th day of March, A. D. 1903.

ROBERT L. SMITH. JAMES WARHURST, JR.

Witnesses as to the signature of Robert L. Smith:

CHAs. O. SHERVEY, S. BLISS.

Witnesses as to the signature ofJames Warhurst, Jr.:

CHAS. O. SHERVEY, GEO. W. FITZPATRICK. 

